A method of selecting one element among a plurality of elements of a phased-array ultrasonic weld inspection arrangement during inspection of a weld to obtain optimum weld inspection coverage. The weld connects portions of material having a known thickness. The elements extend along an ultrasonic transmission wedge of the arrangement that supports the extent of the elements at a wedge angle relative to the welded material. The method includes utilizing material thickness, offset distance of an edge of the wedge from a weld centerline and number of elements within calculation that yields the selection.